Title:
埋込磁石形回転電機及びそのロータの製造方法
Document Type and Number:
Japanese Patent JP5842217
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a large-capacity and highly-efficient embedded magnet rotary electric machine that, while reducing manufacturing costs, suppresses eddy current so as to prevent damage to permanent magnets due to heat generation.SOLUTION: An embedded magnet rotary electric machine 20 includes: a stator 3 that has excitation coils wound therearound; and a rotor 21 that is arranged relatively rotatably across a predetermined air gap G from the stator 3. The rotor 21 of the embedded magnet rotary electric machine 20 has a rotating shaft 22, and a rotor core 23 that is formed integrally with an outer circumference of the rotating shaft 22. The rotor core 23 has: a plurality of disk portions 23a, with axial gaps H at predetermined intervals in between, that extend in a direction perpendicular to an axial direction; and a plurality of permanent magnets 25 that are embedded in the disk portions 23a through the gaps H.
Inventors:
Toshiharu Mochida
Hideki Oguchi
Hideki Oguchi
Application Number:
JP2011081790A
Publication Date:
January 13, 2016
Filing Date:
April 01, 2011
Export Citation:
Assignee:
Fuji Electric Co., Ltd.
International Classes:
H02K1/32; H02K1/22; H02K1/27; H02K1/28; H02K15/03
Domestic Patent References:
| JP2005354770A | ||||
| JP55079641U | ||||
| JP2003174743A | ||||
| JP9056093A | ||||
| JP6205554A | ||||
| JP9233740A |
Attorney, Agent or Firm:
Ichi Hirose
Hide Tanaka Tetsu
Hide Tanaka Tetsu